Adds two comprehensive tests to prevent future regression of the parameter
order bug in `restriction_service.is_allowed()` calls:
1. `test_gemini_parameter_order_regression_protection` - Tests edge case
where only alias is allowed, ensuring correct parameter order
2. `test_gemini_parameter_order_edge_case_full_name_only` - Tests reverse
scenario where only full model name is allowed
These tests specifically catch the subtle bug where parameters were
incorrectly passed as (provider, user_input, resolved_name) instead of
(provider, resolved_name, user_input). The bug was masked by OR logic
in most cases but could cause issues in edge scenarios.
All 498 tests pass, including the new regression protection tests.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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